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6 Commits

Author SHA1 Message Date
Chuanqi Xu
801c2b9bba [FuncSpec] Add an option to specializing literal constant 
Now the option is off by default. Since we are not sure if this option
would make the compile time increase aggressively. Although we tested it
on SPEC2017, we may need to test more to make it on by default.

Reviewed By: SjoerdMeijer

Differential Revision: https://reviews.llvm.org/D104365
 2021-06-30 11:26:44 +08:00
Sjoerd Meijer
342bbb7832 [FuncSpec] Don't specialise functions with NoDuplicate instructions. 
getSpecializationCost was returning INT_MAX for a case when specialisation
shouldn't happen, but this wasn't properly checked if specialisation was
forced.

Differential Revision: https://reviews.llvm.org/D104461
 2021-06-21 09:02:11 +01:00
Sjoerd Meijer
dcd23d875a [FuncSpec] Don't specialise functions with attribute NoDuplicate. 
Differential Revision: https://reviews.llvm.org/D104378
 2021-06-17 10:32:29 +01:00
Sjoerd Meijer
49ab3b1735 [FuncSpec] Statistics 
Adds some bookkeeping for collecting the number of specialised functions and a
test for that.

Differential Revision: https://reviews.llvm.org/D104102
 2021-06-16 09:11:51 +01:00
Chuanqi Xu
86906304d8 [FuncSpec] Use std::pow instead of operator^ 
The original implementation calculating UserBonus uses operator ^, which means XOR in C++
language.
At the first glance of reviewing, I thought it should be power, my bad.
It doesn't make sense to use XOR here. So I believe it should be a
carelessness as I made.

Test Plan: check-all

Reviewed By: SjoerdMeijer

Differential Revision: https://reviews.llvm.org/D104282
 2021-06-16 10:13:21 +08:00
Sjoerd Meijer
9907746f5d Move Function Specialization to its correct location. NFC. 
As a follow up of rGc4a0969b9c14, and as part of D104102, move it to
the IPO transformations directory.
 2021-06-11 15:00:10 +01:00